[people/ms/u-boot.git] / drivers / block / Kconfig

config BLK
	bool "Support block devices"
	depends on DM
	default y if DM_MMC
	help
	  Enable support for block devices, such as SCSI, MMC and USB
	  flash sticks. These provide a block-level interface which permits
	  reading, writing and (in some cases) erasing blocks. Block
	  devices often have a partition table which allows the device to
	  be partitioned into several areas, called 'partitions' in U-Boot.
	  A filesystem can be placed in each partition.

config HAVE_BLOCK_DEVICE
	bool "Enable Legacy Block Device"
	help
	  Some devices require block support whether or not DM is enabled

config SPL_BLK
	bool "Support block devices in SPL"
	depends on SPL_DM && BLK
	default y
	help
	  Enable support for block devices, such as SCSI, MMC and USB
	  flash sticks. These provide a block-level interface which permits
	  reading, writing and (in some cases) erasing blocks. Block
	  devices often have a partition table which allows the device to
	  be partitioned into several areas, called 'partitions' in U-Boot.
	  A filesystem can be placed in each partition.

config BLOCK_CACHE
	bool "Use block device cache"
	default n
	help
	  This option enables a disk-block cache for all block devices.
	  This is most useful when accessing filesystems under U-Boot since
	  it will prevent repeated reads from directory structures and other
	  filesystem data structures.

config IDE
	bool "Support IDE controllers"
	select HAVE_BLOCK_DEVICE
	help
	  Enables support for IDE (Integrated Drive Electronics) hard drives.
	  This allows access to raw blocks and filesystems on an IDE drive
	  from U-Boot. See also CMD_IDE which provides an 'ide' command for
	  performing various IDE operations.
Commit	Line	Data
09d71aac SG	1	config BLK
	2	bool "Support block devices"
	3	depends on DM
896a74f6	4	default y if DM_MMC
09d71aac SG	5	help
	6	Enable support for block devices, such as SCSI, MMC and USB
	7	flash sticks. These provide a block-level interface which permits
	8	reading, writing and (in some cases) erasing blocks. Block
	9	devices often have a partition table which allows the device to
	10	be partitioned into several areas, called 'partitions' in U-Boot.
	11	A filesystem can be placed in each partition.
	12
1811a928 AF	13	config HAVE_BLOCK_DEVICE
	14	bool "Enable Legacy Block Device"
	15	help
	16	Some devices require block support whether or not DM is enabled
	17
c4d660d4 SG	18	config SPL_BLK
	19	bool "Support block devices in SPL"
	20	depends on SPL_DM && BLK
	21	default y
	22	help
	23	Enable support for block devices, such as SCSI, MMC and USB
	24	flash sticks. These provide a block-level interface which permits
	25	reading, writing and (in some cases) erasing blocks. Block
	26	devices often have a partition table which allows the device to
	27	be partitioned into several areas, called 'partitions' in U-Boot.
	28	A filesystem can be placed in each partition.
	29
e40cf34a EN	30	config BLOCK_CACHE
	31	bool "Use block device cache"
	32	default n
	33	help
	34	This option enables a disk-block cache for all block devices.
	35	This is most useful when accessing filesystems under U-Boot since
	36	it will prevent repeated reads from directory structures and other
	37	filesystem data structures.
e8a016b5	38
fc843a02 SG	39	config IDE
fc843a02 SG	40	bool "Support IDE controllers"
1811a928	41	select HAVE_BLOCK_DEVICE
fc843a02 SG	42	help
	43	Enables support for IDE (Integrated Drive Electronics) hard drives.
	44	This allows access to raw blocks and filesystems on an IDE drive
	45	from U-Boot. See also CMD_IDE which provides an 'ide' command for
	46	performing various IDE operations.